Welcome to Geological Journal of China Universities ! Today is
Share:

J4

• Article •     Next Articles

Progress in Searching Natural High—Pressure Minerals and Its Significance in the Earth’s Mantle Mineralogy

CHEN Ming, XIE Xian-de   

  1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640
  • Received:2000-06-20 Revised:2000-06-20 Online:2000-06-20 Published:2000-06-20

Abstract: The study of shock-metamorphic effects on the rocks of terre strial impact craters and on meteorites has been an approach in searching natura l high-pressure minerals. Recently, several high-pressure phases including α -PbO2, post-stishovite, (Na,K,Ca)AlSi3O8-hollandite and a high-press ure polymorph of apatite, which could occur in the Earth's mantle, have been fou nd in the meteorites. The findings of natural high-pressure minerals have promo ted the development in the mantle's mineralogy.